Tubular lantern.



C. L. BETTS.

TUBULAR LANTBRN.

APPLIGATION FILED JULY 12, 1912.

Patented Nov.' 19, 1912.

i Unirse sra'rns Parana ersten.

CHARLES L. narrator NEW YORK, N. Y., AssIGNoR. To a. E. Dinrz COMPANY,or NEW YORK, N. Y.

l TUBULAR LANTERN.

Specification of Letters Patent.

Patented Nov. 19, 1912.

To ally whom 'it may. concern;

Be it known that I, CHARLES IJ. BE'r'rs, a citizen of the United States,residing at New York, borough of Brooklyn, in the county of Kings andState of New Yorin have invented a new and useful Improvement inYTubular Lanterns, of which the following is a specification.

This invention relates to that class of tubular lanterns in which theglobe plate is so mounted that it is movable toward and'from the burnerand in which the burner is locked in the air chamber by a rotarymovement which causes the shaft of the wick ratchets or wheels to engageunderneath an overhanging locking part of the air chamber. The mountingof the globe plate may be such that the plate is hinged and can be swungback from the burner and down upon the same, or such that the plate isguided and can be raised from the burner and lowered upon the same.

In the use of this class of burners the burner remains loose andunlocked in the air chamber if the user failsto turn the burner in themanner necessary for eifecting this locking. If the user simply insertsthe burner and Vneglects to turn and lock the same, the advantagesresulting from having the burner locked in the air chamber are notsecured, whereby the safety of the lantern is impaired and the wick tubedoes not correctly register with the slot in the burner cone when thelatter is secured to the globe plate, whereby the combustion isimpaired.

The object of this invention is to provide the lantern with means forautomatically performing the locking movement of the burner upon movingthe globe plate down upon the same for placing the plate in the properworking position.

In the accompanying drawings: Figure 1 is a front elevation of the lowerportion of a tubular lantern provided with kthis improvenient, thefigure showing the globe plate hinged and the burner locked in place.Fig. 2 is a view at right angles to Fig. 1, partly in section, thesection being taken on line 2-2, Fig. 1. Fig. 3 is a view similar toFig. 2, showing the globe plate partially swung backen its hinge. Fig. 4is a view similar to Fig. 3, but showing the globe plate guided by meansof a crank shaft so that it can be raised and lowered,

the figure showing the plate raised from the burner. Fig. 5 1s adetached perspective view of the burner. Fig. 61s a detached perspectiveView of the upper portion of the air chamber. i

Like reference characters refer to like parts 1n the several figures.

A represents the oil pot, B the air chain- `ber on the same, C thetubes, E the burner,

e the wick tube, f the wick raiser shaft, Gr the globe plate, g theburner cone thereon, 7L the slot in the cone, and I the globe. The airchamber is provided with undercut or elbowshaped slots for the receptionof the wick raiser shaft f which is inserted into the slots from abovein seating the burner. The latter is then turned so as to engage theshaft underneath the lip or portion Z of the air chamber which overhangsthe lower horizontal portion of the slot and by lwhich the burner islocked to the air cham- M represents a cam which is arranged on theunder side of the globe plate in such position that upon lowering theglobe plate to its working position upon the burner, the oblique face ofthe cam engages the rear side of the wick raiser shaft, as representedin Fig. 3, and presses the same forwardly or toward the closed end ofthe horizontal portion of the slot, thereby turning the burner in itsseat until it has reached the proper position, as represented in Figs. 1and 2. In this position the cam holds the wick raiser shaft in the endportion of the slot and prevents the shaft from moving backwardly towardthe open end of the slot. Upon lowering the globe plate upon the burnerthe cam automatically turns the burner into the locked position and inthis manner insures the proper locking of the burner without requiringany attention on the part of the user, and also registers the wick tubewith the slot in the burner cone if the latter is secured to the globeplate as shown.

In the construction of the lantern represented in Figs. 1 3, the globeplate is hinged to a support n secured to the air chamber or some othersuitable part of the lantern so that the plate can be swung back on itshinge, and in the construction represented in Fig. 4 the globe plate isconnected with a cranked lift-er shaft o in a Well known manner so thatthe plate can be raised and lowered toward and from the burner.

I claim as my invention:

l. In a tubular lantern, the combination with an air chamber having alooking device, and a burner having a Wick raiser shaft capable of alocking movement for engaging said shaft with said looking device, of aglobe plate whichv is movable toward and from the burner and providedwith means for Causing said shaft to become engaged with said lookingdevice, Substantially as set forth.

2. In a tubular lantern, the combination with an air chamber having alocking slot, and a burner having a Wick raiser shaft capable of rotarymovement in said chamberv for engaging said shaft With said slot, of aglobe plate Which is movable toward and from the burner and providedWith a cam which engages said shaft upon lowering the plate and causesthe burner to be turned to the locked position, substantially as setforth.

3. In a tubular lantern, the combination With an air chamber havin alocking slot, and a burner having a Wick raiser shaft capable of rotarymovement in said chamber for engaging said shaft With said slot, of aglobe plate which is provided With a slotted burner cone and movabletoward and from the burner, and a cam secured to said plate and engagingsaid shaft upon lowering said plate, thereby turning said burner to thelooked position and registering its Wick tube with the slot of theburner cone, substan tially as set forth.

Witness my hand in the presence of tivo subscribing witnesses.

CHARLES L. BETTS.

Witnesses T. W. VAN DWYN, R. D. BADGLEY.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

